Shaft end roll mounting



J, L. F. Ross SHAFT END ROLL MOUNTING Aug. 11, 1959 2 Sheets-Sheet 1Filed July 31. 1953 mg 3 2 N wN i .HYM: JX Q l ww m m \Am YE I.INVENTOR. JOHN L. F. R065 BY Mai/MM ATTO/QNEVU- Aug. 11, 1-959 J. F.12055 g 2,899,222

' SHAFT END ROLL MOUNTING Filed July 31, 1953 2 Sheets-Sheet 2 INVENTOR.J OHN L f'. 3056 dwzwi HTTO PNEYS.

United States SHAFT END ROLL MOUNTING Application July 31, 1953, SerialNo. 371,470

6 Claims. (Cl. 287-53) This invention relates as indicated to a novelshaft end roll mounting, and more particularly to means adaptedadjustably to mount a forging roll of the outrigger type on theprojecting end portion of the roll shaft.

Roll forging machines as disclosed in Criley Patent 2,130,069, forexample, are well known in the art, ordinarily being arranged forone-cycle operation by means of control mechanism of the general typedisclosed in Criley Patent 2,496,040. In some instances, the ends of thetwo roll shafts may be caused to project beyond the supporting stand inwhich they are journalled to carry additional opposed rolls thereon.Such outrigger rolls are generally intended for certain lighter forgingoperations although in some cases the machine may be designed withoutrigger rolls only mounted on especially massive, well-supportedshafts for heavier work.

Such outrigger rolls become heated after a short period of use andtherefore expand, tending to loosen n the shafts. Various expedientshave been adopted to accommodate this expansion, ordinarily a taperedsleeve interposed between the tapered end portion of the shaft and rolland adapted to be adjusted axially of the shaft. Of course, when onesuch roll is thus adjusted, this will ordinarily mean that the pass onsuch roll is shifted laterally out of register with the pass of theopposed roll and after the two rolls have been securely seated in theirheated condition, it then becomes necessary to make a final adjustmentproperly to align the two rolls for the forging operation.

It is accordingly a principal object of my invention to provide shaftend roll mounting means adapted to facilitate accurate repositioning ofthe rolls while at the same time firmly seating the same.

Another object is to provide such roll mounting means which will at thesame time permit the roll to be directly keyed to the shaft end portionto be driven thereby.

Still another object is to provide such roll mounting means which willfacilitate removal and changing of the roll when desired.

Other objects of the invention will appear as the description proceeds.

To the accomplishment of the foregoing and related ends, said inventionthen comprises the features hereinafter fully described and particularlypointed out in the claims, the following description and the annexeddrawing setting forth in detail certain illustrative embodiments cf theinvention, these being indicative, however, of but a few of the variousways in which the principle of the invention may be employed.

In said annexed drawing:

Fig. 1 is an end view of a roll assembly in accordance with my inventionshowing the roll die and roll die retaining cap;

Fig. 2 is a longitudinal sectional view taken on the line 22 of Fig. 1;

atent 0 ice Fig. 3 is a longitudinal sectional view taken on the line3-3 on Fig. 1; and

Fig. 4 is a side view of the adjusting sleeve adapted to be interposedbetween the roll die and shaft end.

Referring now more particularly to such drawing, the embodiment of myinvention there illustrated comprises the usual roll shaft 1 having atapered end portion 2 provided with a relatively wide and strong sunkenkey 3 secured thereto by means of cap screws 4 and 5.

The roll die 6 has a straight cylindrical bore 7 making a sliding fit onthe cylindrical outer surface 8 of split die sleeve 9 and such bore isprovided with a keyway 10 adapted to fit and bear against the respectivesides of key 3. Sleeve 9 has a tapered internal bore 11 adapted to fiton the tapered end 2 of shaft 1 and such sleeve is split at 12 to permita degree of axial adjustment relative to such tapered shaft end. Suchsplit 12 widens to a relatively wide gap 13 extending to the inner endof the sleeve to accommodate key 3 passing therethrough. Such gap willordinarily be wide enough to afford key 3 a degree of clearance. Sleeve9 has a radially outwardly projecting flange 14 at its outer end.

On the outer side of roll die 6 are a number of tapped holes for capscrews 15, 16 and 17 which pass through holes in flange 14 of die sleeve9 and die retainer cap 18 to secure these members in assembled relation.Cap 18 has an inner cylindrical portion fitting within the shortcylindrical inner portion 19 of sleeve 9.

Flange 14 of the die sleeve also has drilled clearance holes for setscrews 20, 21 and 22, and cap 18 is tapped threadedly to engage such setscrews which may be adjusted to bear against the'outer side of roll 6 todetermine, in cooperation with cap screws 15, the exact axial positionof roll die 6 relative to sleeve 9.

Cap 18 is drilled for cap screws 23, 24, 25 and 26 as is the end ofshaft 1 to bolt the cap to the shaft. It will be appreciated, however,that the effective driving of roll die 6 is through key 3 and keyway 10as previously explained. Cap 18 is also tapped for back-01f setscrews 27and 28 whereby turning of such set screws in engage ment with the shaftend may serve to back off the assembly therefrom.

Figure 2 is illustrative of a normal assembly in accordance with myinvention. If axial adjustment of the roll die is required to matchimpressions in top and lower roll dies, cap screws 23, 24, 25 and 26 maybe loosened slightly and back-off set screws 27 and 28 tightenedproportionately, thereby spacing cap 18 a slightly greater distance fromthe end of shaft 1. Then, cap screws 15, 16 and 17 are released and setscrews 20, 21 and 22 tightened the required distance to match the die.impressions. Thereupon, after again tightening cap screws 15, 16 and17, set screws 27 and 23 are released and cap screws 23, 24, 25 and 26are tightened.

The mounting means of my invention not only aifords a convenient devicefor adapting the roll to the shaft but also facilitates bodily axialadjustment of the roll as described. It will be appreciated that thedegree of movement involved is ordinarily slight to serve my purpose.The parts are easily manufactured and assembled, and rolls may beremoved and changed without difliculty.

Other modes of applying the principle of the invention may be employed,change being made as regards the details described, provided thefeatures stated in any of the following claims or the equivalent of suchbe employed.

I therefore particularly point out and distinctly claim as my invention:

1. A shaft and roll assembly comprising a shaft having a tapered endportion, a longitudinally extending key countersunk and secured in saidtapered portion, a longitudinally split sleeve fitted over said taperedportion and having a complementary tapered inner periphery and acylindrical outer periphery, the split in said sleeve having a widenedportion accommodating said key located therein, a radially outwardlyextending flange on the axially outer end of said sleeve, a rollliaviiig acen'tral cylindrical opening therethrough firmly seated onsuch cylindrical outer peripheral surface of said sleeve and providedwith a keyway tightly embracing said key, an end cap having a shortcylindrical central portion fitting within a cylindrical end portion ofsaid sleeve and having a radially extending portion closely overlyingsaid radially outwardly extending flange on said sleeve, cap screwspassing through said cap and sleeve flange and threaded in the side ofsaid roll to assemble said cap, sleeve and roll together as a unit, capscrews passing through said cap and threaded in the end of said shaft tosecure said latter assembly thereto, set screws threaded in saidradially extending portion of said cap and passing through said flangeon said sleeve to bear against the side of said roll, and set screwsthreaded in said cap and bearing against the end of said shaft.

2. A shaft and roll assembly comprising a shaft having a tapered endportion, a longitudinally extending key secured in said tapered portion,a longitudinally split sleeve fitted over said tapered portion andhaving a complementary tapered inner periphery and a cylindrical outerperiphery, said sleeve having a slot accommodating said key, a radiallyoutwardly extending flange on the axially outer end of said sleeve, aroll having a central cylindrical opening therethrough firmly seated onsuch cylindrical outer peripheral surface of said sleeve and providedwith a keyway tightly embracing said key, an end cap having a portionfitting within the end of said sleeve and having a radially extendingportion closely overlying said radially outwardly extending flange onsaid sleeve, screws joining said cap, sleeve and roll together as aunit, screws securing said cap to the end of said shaft, set screwsthreaded in said radially extending portion of said cap and passingthrough said flange on said sleeve to bear against the side of saidroll, and set screws threaded in said cap and bearing against the end ofsaid shaft. 7

3. A shaft and roll assembly comprising a shaft having a tapered endportion, a longitudinally extending key secured in said tapered portion,a longitudinally split sleeve fitted over said tapered portion andhaving a complementary tapered inner periphery and a cylindrical outerperiphery, said sleeve having a slot accommodating said key, a radiallyoutwardly extending flange on the axially outer end of said sleeve, aroll having a central cylindrical opening therethrough firmly seated onsuch cylindrical outer peripheral surface of said sleeve and providedwith a keyway tightly embracing said key, an end cap overlying the endof said shaft and said sleeve flange and havmg a centering portionfitting within the end of said sleeve serving substantially as acontinuation of said shaft, means adjustably joining said roll, sleeveflange and cap together for axial adjustment of said roll relative tosaid cap and sleeve, and means securing said cap to the end of saidshaft for adjustment axially relative thereto.

4. A shaft and roll assembly comprising a shaft having a tapered endportion, a longitudinally extending key secured in said tapered portion,a longitudinally split sleeve fitted over said tapered portion andhaving a complementary tapered inner periphery and a cylindrical outerperiphery, said sleeve having a slot accommodating said key, a radiallyoutwardly extending flange on the axially outer end of said sleeve, aroll having a central cylindrical opening therethrough firmly seated onsuch cylindrical outer peripheral surface of said sleeve and providedwith a keyway tightly embracing said key, aii end cap overlying the endof said shaft and said sleeve flange and having a centering portionfitting within the end of said sleeve, means adjustably joining saidroll, sleeve flange and cap together for axial adjustment of said rollrelative to said cap and sleeve, spacer means adapted adjustably tospace said cap and roll, and means securing said cap to the end of saidshaft for adjustment axially relative thereto. 7 V i 5. A shaft and rollassembly comprising a shaft having a tapered end portion, alongitudinally extending key secured in said tapered portion, alongitudinally split sleeve fitted over said tapered portion and havinga complementary taperedinner periphery and a cylindrical outerperiphery, a roll having a central cylindrical opening therethroughfirmly seated on such cylindrical outer surface of said sieeve andprovided with 'a keyway tightly embracing said key, an end cap overlyingthe end of said shaftand sleeve and having a portion fitting within theend of said sleeve, fneans axially adjustably joining said cap and roll,andmeans securing said cap 'to the end of said shaft for adjustmentaxially relative thereto.

6. A shaft and roll assembly comprising a shaft having a tapered endportion, a longitudinally split sleeve fitted over said tapered portionand having a complementary tapered inner periphery and a cylindricalouter periphery, a roll having a central cylindrical openingtherethrough firmly seated on such cylindrical outer peripheral suffaeeof said sleeve, an end cap overlying the eiid'of said shaft and sleeveand having a reduced'centefi'rig portion fitting withinthe end ofsaid'sleeve, means axially adjustably joining said cap and'roll, andmeans securing said cap to the end of said shaft for adjustment axiallyrelative thereto.

References Cited in the file of this patent UNITED STATES PATENTS1,378,091 Carlsen May 17, 1921 1,395,913 .Ford Nov. 1, 1921 2,010,451Browning Aug. 6, 1935 2,401,536 Williams June 4, 194 2,456,516 KidneyDec. 14, 1948 2,634,144 Friedman Apr. 7, 1953 FOREIGN PATENTS 121,613Australia June 20, 1946

